Darkseid is a New God whose Omega Beams and cosmic power put him several tiers above Doctor Doom.
Doctor Doom is one of Marvel's most dangerous villains, but Darkseid is a fundamental force of evil in the DC universe โ a New God whose power rivals Superman's and whose Omega Beams can disintegrate, teleport, or trap opponents in time loops. Doom's impressive combination of technology and sorcery simply operates at a lower tier.
Darkseid's Omega Beams track their target relentlessly and have hit the Flash, one of the fastest beings in fiction. Doom's force fields are impressive but have not been tested against attacks of this nature. The Omega Effect can erase beings from existence or trap them in a nightmarish timeline โ outcomes Doom's defenses were never designed to counter.
Doom's magical abilities give him some advantage since Darkseid is not immune to sorcery. But Darkseid has tanked magical attacks from powerful sorcerers before and has his own cosmic-level abilities beyond the Omega Beams, including superhuman strength comparable to Superman.
Darkseid's Omega Beams can disintegrate or trap opponents in time loops, his strength rivals Superman's, and as a New God he operates at a cosmic power tier that Doctor Doom's combined abilities cannot match.
Doctor Doom's sorcery could exploit potential vulnerabilities in Darkseid's defenses, and his genius for stealing cosmic power means he could theoretically find a way to drain or redirect Darkseid's Omega Effect with sufficient preparation.
Darkseid wins through superior cosmic power and the devastating Omega Beams. Doom is a formidable strategist, but Darkseid's raw power and New God status place him in a tier Doom cannot reach in a standard encounter.
Darkseid also fights
Doctor Doom also fights